Directional Clustering Through Matrix Factorization.
Thomas BlumensathPublished in: IEEE Trans. Neural Networks Learn. Syst. (2016)
Keyphrases
- matrix factorization
- nonnegative matrix factorization
- collaborative filtering
- recommender systems
- low rank
- k means
- clustering algorithm
- missing data
- clustering method
- negative matrix factorization
- simultaneous clustering
- data sparsity
- factor analysis
- unsupervised learning
- factorization methods
- probabilistic matrix factorization
- personalized ranking
- cluster analysis
- data matrix
- tensor factorization
- variational bayesian
- implicit feedback
- stochastic gradient descent
- factorization method
- sparsity constraints
- linear combination
- feature space